Delivery, prices and field notes
What is on the floor this month, what raw material costs, and what the last few lines actually measured. Dated, with the numbers attached.
Coconut shell char landed at USD 470–560/t: what moved this quarter
Char is 45–55% of the cost of a tonne of activated carbon. Here is the current landed range into Henan and the three variables that will move it before December.
A 2 t/h rotary line left for Sulawesi: 11 days of loading, 24 of erection
What was in the 6 containers, why the refractory went in last, and the two design changes this project forced on the standard layout.
26 months of lining life, then a 12-day reline: the Slep furnace maintenance calendar
Measured on four shaft furnaces running shell char at 850–900 °C. The failure mode is almost never the brick — it is the joint.
Same carbon, two labs, 60 mg/g apart: where the iodine number difference comes from
Buyers reject loads over a number that depends on the test method. Four variables explain almost every dispute, and three of them are in the sample bag.
Looking for the long-form engineering notes? Technical resources →
Send the raw material, target tonnage and finished spec. You get a configuration, a utility schedule and a budget range — not a brochure.